Filling-feeler bobbin



June 30,.,1925. Y 1,544,522

W. l. STIMPSON FILLING FEELER BOBBINl Fild Deo. zo, 1924 www M4 ATTORNEY Patented June 30, 1925.

UNITED STATES WALLACE I. STIMPSON, OF HOPEDALE,

MASSACHUSETTS, ASSIGNOR TO DRAPERCOR- IPOBATION, OFHOPEDALE, MASSACHUSETTS, A CORPORATION F MAINE.

FILLING-FEELER BOBBIN.

Application led December 30, 1924. Serial No. 758,937.

To all 'whom it may concern:

Be it known that I, WALLACE I. S'rfMrsoN, a citizen of the United States, residing at Hopedale, in the county of Worcester and State of Massachusetts, have invented an Improvement in Filling-Feeler Bobbins, of which the following description, in connection with the accompanying drawings, is a specification, like characters on the drawings representing like parts.

This invention relates to feeler` bobbins employed in the shuttles of filling replenish,

ving looms.

It is now the usual practice to spin yarn directly from rovings or slivers and to wind them by filling wound upon bobbins which may be employed in the shuttles of looms, and as the shuttle is picked or moves from one end of the lay to the other during weaving operation, this filling is Withdrawn from the bobbin in the shuttle under light tension, just sufficient only to insure that the filling will be laid straight in the shed. It some times happens that the filling will kink or snarl as it is withdrawn from the bobbin 1n the shuttle during weaving, and, since the tension on the yarn is light, these kinks and snarls will sometimes appear in the finished cloth. This objectionable condition of the ,3 yarn is especially noticeable where the yarn is hard twisted. In fillingv replenishing looms the bobbin is caused to coact with a feeler, and in that type of feeler mechanism wherein lthe feeler slides along the bobbin when the yarn or filling is substantially exhausted, to thereby initiate replenishment of filling, the delicacy of the feeler action requires that it shall find no obstruction to its path of movement longitudinally along the bobbin when the filling is to be replenished.

Une of the objects of the resent invention therefore is to provide a filling feeler bobbin for use in the shuttles of f'eeler .looms wherein provision is made for treating the yarn while on the bobbin to lavoid the formation of snarls and 'withdrawn therefrom, and at the saine time to incorporate into such bobbin a filling v feeler portion which will permit the delicate action of the feeler to determine when the filling is substantially exhausted, and thereupon to freely move along the surface of the bobbin to effect replenishment thru a usual train of' mechanism.

' tion extending from kinks as the filling is In accordance with the present invention the` filling feeler bobbin is provided with a head portion by which it may be removably secured within the shuttle as usual, and an imperforate cylindrical f'eele'r portion having a smooth uninterrupted surface for c0- operation with the feeler, and a barrel porthe cylindrical portion to the tip of the bobbin provided with a series "of, perforations or holes preferably extending transversely thru the bobbin and crossing its hollow interior so that the bobbin with the filling wound thereon may be subjected to a fluid or vapor treatment,- without injurious effect upon the bobbin itself, to remove from the yarn or filling its snarling and kinking tendency during weaving. As a further development of the present invention the bobbin may be and usually is provided with a covering vof non-frictional material to protect the bobbin itself during the treatment of the yarn thereon, and providing at the feeler portion a smooth, unobstructing sur-face along which the feeler may move or slide when the filling is substantially exhausted on a detecting beat. Where the bobbin is thus covered by an anti-friction material, the conical filling winds ofl the yarn on the bobbin are liable to slip off in bunches as the shuttle is brought to rest at the end of its pick, a condition which is overcome in` the present invention by the perforations thru the bai/- rel portion of the bobbin, which serve to hold the conical layers of yarn on the bobbin bythe winds of filling which pass over the open end portions of the perforations.

The invention and novel characteristics of the filling bobbin will best be made clear from the following description and accompanying drawing of one good practical form thereof.

In the drawing'zvFig. 1 is a plan view showing a filling replenishing shuttle, one end portion of which is'broken away and a filling feeler' bobbin detachably supported therein.

Fig. 2 shows the filling feeler bobbin detached from the shuttle and a side slipping feeler coacting with the smootjh barrel por- 10 tion thereof.

Fig. 3 is a cross section on of Fig. 2, and- Fig. 4 is a cross section on the line 4-44 of Fig. 2.

y" the line l The shuttle 1 in which the feeler bobbin is used may be of ordinary construction and is provided with the bobbin holding jaws 2 which engage rings 3 mounted on the head of the bobbin, and the shuttle has the usual opening 4 in the side wall thereof for the entrance of a feeler 5 preferably of the side slipping type, and having teeth 6 which engage the working supply of filling on the bobbin on a detecting beat and when the filling is substantially exhausted coact with the feeler portion of the bobbin and move longitudinally along the surface thereof to initiate replenishment of filling.

The bobbin has a head 7 on which are mounted a bobbin-holding ring or rings 3, and adjacent the head 7 the bobbin has a smooth cylindrical feeler portion, the surface of which is not perforated or formed with other obstruction, so that when the feeler contacts with the smooth cylindrical portion 8 of the bobbin, it may be free to slide longitudinally along the same towards the end of the bobbin.

Beyond the smooth cylindrical feeler portion 8 the bobbin gradually tapers towards the tip'into a barrel which may be provided with stepped or ring portions 9 at1 intervals. The barrel portion 10 of the bobbin has a series of perforations 11 which extend thru the bobbin and across the hollow interior 12 thereof, as indicated in Figs. 3 and 4. The perforations 11, as shown, extend only thru the barrel portion of the bobbin and therefore the feeler portion 8, not being rovided with such perforations, oers no o struction to the free movement of the feeler along such surface when the filling is substantially exhausted on a detecting beat.

When the yarn is wound upon the bobbin, the bobbin and its load of yarn may be subjected to a conditioning agent such, for instance, as moisture, steam, or the like, and such conditioning agent will pass into the interior of the bobbin thru the load of yarn wound thereon, and will circulate yfreely thru the mass of yarn to takeout any tendency of the yarn to kink or snarl during the weaving operations as the yarn is Withdrawn progressively from the bobbin.`

In the present instance of the invention the perforations thru the barrel portion of the bobbin are arranged in staggered relation 'and preferably alternating at `right angles to each other, as indicated, to thereby insure that the conditioning agent may pass thru all portions of the yarn supported y the barrel of the bobbin and without inljury to the latter.

The cylindrical smooth surface feeler portion 8 of the bobbin may be provided with a non-frictional covering 13, which will not soften or deteriorate during treatment of the bobbin and yarn by the conditioning agent, and indeed the entire bobbin may be covered by such non-frictional material, to thereby protect the entire bobbin itself from any tendency of the conditioning agent to injuriously aect the bobbin wood.

When the bobbin is thus covered by the non-frictional material, which may be of enamel paint'properly dried and hardened, or other similar material, there is a tendency of the layers of yarn on the bobbin to slide in bunches from the tip end portion of the bobbin when the shuttlgl is brought to vrest in the shuttle box, but the perforations 11 -being distributed thruout the barrel portion of the bobbin provide across their open ends a holding medium for the layers of yarn Wound thereon, with the result that slipping of the yarn in bunches along the bobbin, even tho the latter be provided with an anti-friction covering, is entirely obviated.

The bobbin forming the subject of the present invention is especially advantageous 1n connection with a side slipping feeler because the imperforate smooth cylindrical feeler surface 8 of the bobbin thus piresented to the feeler on detecting beats offers no obstruction to the free sliding movement of the feeler, and the staggered perforations thru the barrel of the bobbin yet form means for conditioning the arn load in the bobbin in the prevention of inks and snarls as the yarn is withdrawn therefrom.

Claims- 1. A wooden bobbin for side slipping feeler looms, comprisin a head portion by which the bobbin is he d in the shuttle, a cylindrical iilling feeler portion having a smooth im erforate surface for cooperating with a `fee er in the loom along which the feler ma slide without obstruction on detection o substantial exhaustion of filling, and a barrel portion extending from the cylindrical filling feeler portion to the tip of the bobbin provided with erforations beyond the reach of the fee er as it moves along the bobbin Iand for conditioning the yam to prevent kinks and snarls as it is withdrawn from the bobbin.

2. A wooden bobbin for side slipping feeler looms, comprising a smooth cylindrical illing feeler portion for cooperation with a side slipping feeler durino' weaving, a head at one end of the filling fee er portion by which the bobbin is supported in the shuttle and a barrel at the other end of the feeler portion having a series of perforations extending therethru beyond the reach of the feeler as it slides along the bobbin on detection of substantial exhaustion of filling for conditioning yarn on the bobbin to revent kinks and snarls in the yarn as it 1s withdrawn from the bobbin during weaving.

3. A wooden bobbin for looms, comprising a head by which the bobbin is held in the los- of the bobbin shuttle, a cylindrical feeler portion having an imperforate surface covered bynon-frictional material for side slipping feeler cooperation with the feeler during weaving, and a barrel ortion extending from the smooth cylindrical feeler portion to the tip rovided with perforations in staggered re ation thatthe feeler may slide along the smooth cylindrical non-perf orated portion of the bobbin without obstruction on detection of substantial exhaustion of filling.

In testimony whereof, I have signed my name to this specification.

WALLACE I. STIMPSON. 

